Seiko

Seiko Serial Numbers Explained
Understand the common vintage Seiko serial-number system, its month codes, earlier formats and modern exceptions—without mistaking a partial date for proof.
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How to Choose a Birth-Year Vintage Seiko Watch
A step-by-step birth-year vintage Seiko guide covering caseback and serial-date evidence, decade ambiguity, originality, fit and gift-worthy examples.
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How to Date a Vintage Seiko Watch
A practical guide to dating vintage Seiko watches with the caseback serial, caliber, case code and period evidence—without guessing the decade.
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